The first is that Willow can reduce errors exponentially as we scale up using more qubits. This cracks a key challenge in quantum error correction that the field has pursued for almost 30 years.
Second, Willow performed a standard benchmark computation in under five minutes that would take one of today’s fastest supercomputers 10 septillion (that is, 1025) years — a number that vastly exceeds the age of the Universe.

Quantum Computing: Between Hope and Hype

the primary use of implementing winternitz signatures (PQ signatures), in bitcoin for now would be to knock out the quantum FUD traders! i can't see PQ being of relevance this decade, or probably more decades. "this time it's different" cool, we await with interest your results!